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kicad/eeschema/sch_screen.h

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/*
* This program source code file is part of KiCad, a free EDA CAD application.
*
* Copyright (C) 2009 Jean-Pierre Charras, jaen-pierre.charras@gipsa-lab.inpg.com
* Copyright (C) 1992-2021 KiCad Developers, see AUTHORS.txt for contributors.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, you may find one here:
* http://www.gnu.org/licenses/old-licenses/gpl-2.0.html
* or you may search the http://www.gnu.org website for the version 2 license,
* or you may write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
*/
#ifndef SCREEN_H
#define SCREEN_H
#include <memory>
#include <stddef.h>
#include <unordered_set>
#include <vector>
#include <wx/arrstr.h>
#include <wx/chartype.h>
#include <wx/gdicmn.h>
#include <wx/string.h>
#include <base_screen.h>
#include <core/typeinfo.h>
#include <kiid.h>
#include <kiway_holder.h>
#include <layer_ids.h>
#include <marker_base.h>
#include <page_info.h>
#include <template_fieldnames.h>
#include <title_block.h>
#include <lib_id.h>
#include <sch_symbol.h> // SYMBOL_INSTANCE_REFERENCE
#include <sch_reference_list.h>
#include <sch_rtree.h>
#include <sch_sheet.h>
#include <sch_sheet_path.h>
class BUS_ALIAS;
class EDA_ITEM;
class LIB_SYMBOL;
class LIB_PIN;
class SCH_SYMBOL;
class SCH_LINE;
class SCH_LABEL_BASE;
class PLOTTER;
class REPORTER;
class SCH_EDIT_FRAME;
class SCH_SHEET_LIST;
class SCH_SEXPR_PARSER;
class SCH_SEXPR_PLUGIN;
enum SCH_LINE_TEST_T
{
ENTIRE_LENGTH_T,
END_POINTS_ONLY_T,
EXCLUDE_END_POINTS_T
};
/// Max number of sheets in a hierarchy project
#define NB_MAX_SHEET 500
struct PICKED_SYMBOL
{
LIB_ID LibId;
int Unit;
int Convert;
std::vector<std::pair<int, wxString>> Fields;
PICKED_SYMBOL() : Unit( 1 ), Convert( 1 )
{
}
};
class SCH_SCREEN : public BASE_SCREEN
{
public:
SCH_SCREEN( EDA_ITEM* aParent = nullptr );
~SCH_SCREEN();
SCHEMATIC* Schematic() const;
/**
* Gets the full RTree, usually for iterating.
* N.B. The iteration order of the RTree is not readily apparent and will change
* if/when you add or move items and the RTree is re-balanced. Any exposure of the
* RTree contents to the user MUST be sorted before being presented. See SCH_SEXPR_PLUGIN::Format
* or SCH_EDITOR_CONTROL::nextMatch for examples.
* @return Complete RTree of the screen's items
*/
EE_RTREE& Items() { return m_rtree; }
const EE_RTREE& Items() const { return m_rtree; }
bool IsEmpty() const
{
return m_rtree.empty();
}
bool HasItems( KICAD_T aItemType ) const;
bool HasSheets() const { return HasItems( SCH_SHEET_T ); }
static bool ClassOf( const EDA_ITEM* aItem );
virtual wxString GetClass() const override
{
return wxT( "SCH_SCREEN" );
}
void SetFileFormatVersionAtLoad( int aVersion ) { m_fileFormatVersionAtLoad = aVersion; }
int GetFileFormatVersionAtLoad() const { return m_fileFormatVersionAtLoad; }
const PAGE_INFO& GetPageSettings() const { return m_paper; }
void SetPageSettings( const PAGE_INFO& aPageSettings ) { m_paper = aPageSettings; }
/**
* Set the file name for this screen to \a aFileName.
*
* @note Screen file names must be absolute or empty. Absolute file names do not have to
* exist yet in the case of a new schematic file but file names cannot be relative.
*
* @param aFileName is the absolute file name and path of the screen.
*/
void SetFileName( const wxString& aFileName );
const wxString& GetFileName() const { return m_fileName; }
void SetFileReadOnly( bool aIsReadOnly ) { m_isReadOnly = aIsReadOnly; }
bool IsReadOnly() const { return m_isReadOnly; }
void SetFileExists( bool aFileExists ) { m_fileExists = aFileExists; }
bool FileExists() const { return m_fileExists; }
const VECTOR2I& GetAuxOrigin() const { return m_aux_origin; }
void SetAuxOrigin( const VECTOR2I& aPosition ) { m_aux_origin = aPosition; }
const TITLE_BLOCK& GetTitleBlock() const { return m_titles; }
void SetTitleBlock( const TITLE_BLOCK& aTitleBlock ) { m_titles = aTitleBlock; }
void DecRefCount();
void IncRefCount();
int GetRefCount() const { return m_refCount; }
void SetConnectivityDirty();
/**
* Return the number of times this screen is used.
*
* In the legacy file formats: if this screen is used only once (not a complex hierarchy)
* the reference field can be used to store the symbol reference. If this screen is used
* more than once (a complex hierarchy), then symbols must have a full alternate reference
* management via sheet paths.
*
* In the new schematic file format, all instance data is stored in the root sheet even
* for simple hierarchies.
*
* @return the sheet paths sharing this screen.
*/
std::vector<SCH_SHEET_PATH>& GetClientSheetPaths()
{
return m_clientSheetPathList;
}
void Append( SCH_ITEM* aItem );
/**
* Copy the contents of \a aScreen into this #SCH_SCREEN object.
*
* @warning The contents of \a Screen cannot contain any duplicate sheet names or any
* hierarchy recursion issues or bad things will happen.
*
* @param aScreen is the screen to append to this one.
* @return false if there are any duplicate sheet names or any hierarchy recursion issues the
* calling this method or KiCad will crash.
*/
void Append( SCH_SCREEN* aScreen );
/**
* Delete all draw items and clears the project settings.
*/
void Clear( bool aFree = true );
/**
* Free all the items from the schematic associated with the screen.
*
* This does not delete any sub hierarchies.
*/
void FreeDrawList();
/**
* Check \a aPosition within a distance of \a aAccuracy for items of type \a aFilter.
*
* @param[in] aPosition Position in drawing units.
* @param aAccuracy The maximum distance within \a Position to check for an item.
* @param aType The type of item to find.
* @return The item found that meets the search criteria or NULL if none found.
*/
SCH_ITEM* GetItem( const VECTOR2I& aPosition, int aAccuracy = 0,
KICAD_T aType = SCH_LOCATE_ANY_T ) const;
/**
* Initialize the #LIB_SYMBOL reference for each #SCH_SYMBOL found in this schematic
* from the project #SYMBOL_LIB_TABLE.
*
* Symbol library links are set using the symbol library table and will fall back to
* the cache only if the cache is loaded. The cache should only be loaded when opening
* legacy schematic files.
*
* @note This should only be called when the user specifically requests all library symbol
* links to be updated or when the legacy schematic is opened for the last time. All
* subsequent schematic loads with the new s-expression will contain the library
* symbols and should call #UpdateLocalLibSymbolLinks.
*
* @param[in] aReporter Optional #REPORTER object to write status and error messages into.
*/
void UpdateSymbolLinks( REPORTER* aReporter = nullptr );
/**
* Initialize the #LIB_SYMBOL reference for each #SCH_SYMBOL found in this schematic
* with the local project library symbols.
*/
void UpdateLocalLibSymbolLinks();
/**
* Print all the items in the screen to \a aDC.
*
* @note This function is useful only for schematic. The library editor and library viewer
* do not use a draw list and therefore draws nothing.
*/
void Print( const RENDER_SETTINGS* aSettings );
/**
* Plot all the schematic objects to \a aPlotter.
*
* @note This function is useful only for schematic. The library editor and library viewer
* do not use a draw list and therefore plots nothing.
*
* @param[in] aPlotter The plotter object to plot to.
*/
void Plot( PLOTTER* aPlotter ) const;
/**
* Remove \a aItem from the schematic associated with this screen.
*
* @note The removed item is not deleted. It is only unlinked from the item list.
* @param[in] aItem Item to be removed from schematic.
* @return True if we successfully removed the item
*/
bool Remove( SCH_ITEM* aItem );
/**
* Update \a aItem's bounding box in the tree
*
* @param[in] aItem Item that needs to be updated.
*/
void Update( SCH_ITEM* aItem );
/**
* Removes \a aItem from the linked list and deletes the object.
*
* If \a aItem is a schematic sheet label, it is removed from the screen associated with
* the sheet that contains the label to be deleted.
*
* @param[in] aItem The schematic object to be deleted from the screen.
*/
void DeleteItem( SCH_ITEM* aItem );
bool CheckIfOnDrawList( const SCH_ITEM* aItem ) const;
/**
* Test all of the connectable objects in the schematic for unused connection points.
*
* @param aPath is a sheet path to pass to UpdateDanglingState if desired.
* @param aChangedHandler is an optional callback to make on each changed item.
*/
void TestDanglingEnds( const SCH_SHEET_PATH* aPath = nullptr,
std::function<void( SCH_ITEM* )>* aChangedHandler = nullptr ) const;
/**
* Return all wires and junctions connected to \a aSegment which are not connected any
* symbol pin.
*
* @param aSegment The segment to test for connections.
*/
std::set<SCH_ITEM*> MarkConnections( SCH_LINE* aSegment );
/**
* Clear the state flags of all the items in the screen.
*/
void ClearDrawingState();
size_t CountConnectedItems( const VECTOR2I& aPos, bool aTestJunctions ) const;
/**
* Test if a junction is required for the items at \a aPosition on the screen. Note that
* this coule be either an implied junction (bus entry) or an explicit junction (dot).
*
* A junction is required at \a aPosition if one of the following criteria is satisfied:
* - One wire midpoint and one or more wire endpoints.
* - Three or more wire endpoints.
* - One wire midpoint and a symbol pin.
* - Two or more wire endpoints and a symbol pin.
* - One bus midpoint or endpoint and a bus entry.
*
* @param[in] aPosition The position to test.
* @return True if a junction is required at \a aPosition.
*/
bool IsJunction( const VECTOR2I& aPosition ) const;
/**
* Indicates that a junction dot is necessary at the given location. See IsJunctionNeeded
* for more info.
*/
bool IsExplicitJunction( const VECTOR2I& aPosition ) const;
/**
* Indicates that a junction dot is necessary at the given location, and does not yet exist.
* See IsJunctionNeeded for more info.
*/
bool IsExplicitJunctionNeeded( const VECTOR2I& aPosition ) const;
/**
* Indicates that a juction dot may be placed at the given location. See IsJunctionNeeded
* for more info.
*/
bool IsExplicitJunctionAllowed( const VECTOR2I& aPosition ) const;
/**
* Test if \a aPosition is a connection point on \a aLayer.
*
* @param[in] aPosition Position to test.
* @param aLayer The layer type to test against. Valid layer types are #LAYER_NOTES,
* #LAYER_BUS, and #LAYER_WIRE.
* @return True if \a Position is a connection point on \a aLayer.
*/
bool IsTerminalPoint( const VECTOR2I& aPosition, int aLayer ) const;
/**
* Test the screen for a symbol pin item at \a aPosition.
*
* @param[in] aPosition Position to test.
* @param[out] aSymbol The symbol if a pin was found, otherwise NULL.
* @param aEndPointOnly Set to true to test if \a aPosition is the connection
* point of the pin.
* @return The pin item if found, otherwise NULL.
*/
LIB_PIN* GetPin( const VECTOR2I& aPosition, SCH_SYMBOL** aSymbol = nullptr,
bool aEndPointOnly = false ) const;
/**
* Test the screen if \a aPosition is a sheet label object.
*
* @param[in] aPosition The position to test.
* @return The sheet label object if found otherwise NULL.
*/
SCH_SHEET_PIN* GetSheetPin( const VECTOR2I& aPosition ) const;
/**
* Clear the annotation for the symbols in \a aSheetPath on the screen.
*
* @param[in] aSheetPath The sheet path of the symbol annotation to clear. If NULL then
* the entire hierarchy is cleared.
*/
void ClearAnnotation( SCH_SHEET_PATH* aSheetPath );
/**
* For screens shared by many sheetpaths (complex hierarchies):
* to be able to clear or modify any reference related sharing this screen
* (i.e. the list of symbols), an entry for each screen path must exist.
* This function creates missing entries, using as default reference the current
* reference field and unit number
* Note: m_clientSheetPathList must be up to date
* ( built by SCH_SCREENS::BuildClientSheetPathList() )
*/
void EnsureAlternateReferencesExist();
/**
* Add all schematic sheet and symbol objects in the screen to \a aItems.
*
* @param[out] aItems Hierarchical item list to fill.
*/
void GetHierarchicalItems( std::vector<SCH_ITEM*>* aItems ) const;
/**
* Similar to Items().OfType( SCH_SHEET_T ), but return the sheets in a
* deterministic order (L-R, T-B) for sheet numbering.
*/
void GetSheets( std::vector<SCH_ITEM*>* aItems ) const;
/**
* Return a line item located at \a aPosition.
*
* @param[in] aPosition The VECTOR2I to test for a line item.
* @param aAccuracy Amount to inflate the item hit test bounding box.
* @param aLayer The layer the line is drawn upon.
* @param aSearchType Additional line test criteria.
* @return The SCH_LINE* of the wire item found at \a aPosition or NULL if item not
* found.
*/
SCH_LINE* GetLine( const VECTOR2I& aPosition, int aAccuracy = 0, int aLayer = LAYER_NOTES,
SCH_LINE_TEST_T aSearchType = ENTIRE_LENGTH_T ) const;
SCH_LINE* GetWire( const VECTOR2I& aPosition, int aAccuracy = 0,
SCH_LINE_TEST_T aSearchType = ENTIRE_LENGTH_T ) const
{
return GetLine( aPosition, aAccuracy, LAYER_WIRE, aSearchType );
}
SCH_LINE* GetBus( const VECTOR2I& aPosition, int aAccuracy = 0,
SCH_LINE_TEST_T aSearchType = ENTIRE_LENGTH_T ) const
{
return GetLine( aPosition, aAccuracy, LAYER_BUS, aSearchType );
}
/**
* Return a label item located at \a aPosition.
*
* @param[in] aPosition The VECTOR2I to test for label items.
* @param aAccuracy Amount to inflate the item hit test bounding box.
* @return The SCH_LABEL_BASE* of the label item found or nullptr.
*/
SCH_LABEL_BASE* GetLabel( const VECTOR2I& aPosition, int aAccuracy = 0 ) const;
/**
* Fetch a list of unique #LIB_SYMBOL object pointers required to properly render each
* #SCH_SYMBOL in this schematic.
*
* @return The list of unique #LIB_SYMBOL object pointers.
*/
std::map<wxString, LIB_SYMBOL*>& GetLibSymbols() { return m_libSymbols; }
const std::map<wxString, LIB_SYMBOL*>& GetLibSymbols() const { return m_libSymbols; }
/**
* Add \a aLibSymbol to the library symbol map.
*
* The symbol is mapped to the result of #LIB_ID::Format(). If a symbol is already
* mapped, the existing symbol is replaced with \a aLibSymbol. The screen object takes
* ownership of the pointer.
*
* @param aLibSymbol A pointer the #LIB_SYMBOL to be added to the symbol map.
*/
void AddLibSymbol( LIB_SYMBOL* aLibSymbol );
/**
* Add a bus alias definition (and transfers ownership of the pointer).
*/
void AddBusAlias( std::shared_ptr<BUS_ALIAS> aAlias );
/**
* Remove all bus alias definitions.
*/
void ClearBusAliases()
{
m_aliases.clear();
}
/**
* Return a list of bus aliases defined in this screen
*/
std::unordered_set< std::shared_ptr<BUS_ALIAS> > GetBusAliases() const
{
return m_aliases;
}
const std::vector<SYMBOL_INSTANCE_REFERENCE>& GetSymbolInstances() const
{
return m_symbolInstances;
}
const std::vector<SCH_SHEET_INSTANCE>& GetSheetInstances() const
{
return m_sheetInstances;
}
const KIID& GetUuid() const { return m_uuid; }
void AssignNewUuid() { m_uuid = KIID(); }
#if defined(DEBUG)
void Show( int nestLevel, std::ostream& os ) const override;
#endif
/**
* last value for the zoom level, useful in Eeschema when changing the current displayed
* sheet to reuse the same zoom level when back to the sheet using this screen
*/
double m_LastZoomLevel;
private:
bool doIsJunction( const VECTOR2I& aPosition, bool aBreakCrossings,
bool* aHasExplicitJunctionDot, bool* aHasBusEntry ) const;
private:
friend SCH_EDIT_FRAME; // Only to populate m_symbolInstances.
friend SCH_SEXPR_PARSER; // Only to load instance information from schematic file.
friend SCH_SEXPR_PLUGIN; // Only to save the loaded instance information to schematic file.
void clearLibSymbols();
wxString m_fileName; // File used to load the screen.
int m_fileFormatVersionAtLoad;
int m_refCount; // Number of sheets referencing this screen.
// Delete when it goes to zero.
/**
* The list of sheet paths sharing this screen. Used in some annotation calculations to
* update alternate references.
*
* Note: a screen having a m_refCount = 1 (only one sheet path using it) can have many
* sheet paths sharing this screen if it is inside another sheet having many instances.
*/
std::vector<SCH_SHEET_PATH> m_clientSheetPathList;
PAGE_INFO m_paper; // The size of the paper to print or plot on.
TITLE_BLOCK m_titles;
VECTOR2I m_aux_origin; // Origin used for drill & place files by Pcbnew.
EE_RTREE m_rtree;
int m_modification_sync; // Inequality with SYMBOL_LIBS::GetModificationHash()
// will trigger ResolveAll().
bool m_zoomInitialized; // Set to true once the zoom value is initialized with
// `InitZoom()`.
bool m_isReadOnly; ///< Read only status of the screen file.
///< Flag to indicate the file associated with this screen has been created.
bool m_fileExists;
/// List of bus aliases stored in this screen.
std::unordered_set< std::shared_ptr< BUS_ALIAS > > m_aliases;
/// Library symbols required for this schematic.
std::map<wxString, LIB_SYMBOL*> m_libSymbols;
/**
* The list of symbol instances loaded from the schematic file.
*
* This list is only used to as temporary storage when the schematic file is loaded.
* If the screen is the root sheet, then this information is used to update the
* #SCH_SYMBOL instance reference and unit information after the entire schematic
* is loaded and is never used again. If this screen is not the root sheet, then the
* schematic file is the root sheet of another project and this information is saved
* unchanged back to the schematic file.
*
* @warning Under no circumstances is this information to be modified or used after the
* schematic file is loaded. It is read only and it is only written to non-root
* schematic files.
*/
std::vector<SYMBOL_INSTANCE_REFERENCE> m_symbolInstances;
std::vector<SCH_SHEET_INSTANCE> m_sheetInstances;
/**
* A unique identifier for each schematic file.
*
* As of right now, this only has meaning for the root schematic. In the future, it may
* be useful to detect unexpected hierarchy changes.
*/
KIID m_uuid;
};
/**
* Container class that holds multiple #SCH_SCREEN objects in a hierarchy.
*
* Individual #SCH_SCREEN objects are unique and correspond to .sch files.
*
* NOTE: It may be desirable to fold the functionality of SCH_SCREENS into
* the new SCHEMATIC class at some point, since SCHEMATIC can also be thought
* of as owning the collection of all the SCH_SCREEN objects.
*/
class SCH_SCREENS
{
public:
SCH_SCREENS( SCH_SHEET* aSheet );
SCH_SCREENS( SCH_SHEET& aSheet ) : SCH_SCREENS( &aSheet ) {}
~SCH_SCREENS();
size_t GetCount() const { return m_screens.size(); }
SCH_SCREEN* GetFirst();
SCH_SCREEN* GetNext();
SCH_SCREEN* GetScreen( unsigned int aIndex ) const;
SCH_SHEET* GetSheet( unsigned int aIndex ) const;
/**
* Clear the annotation for the symbols inside new sheetpaths
* when a complex hierarchy is modified and new sheetpaths added
* when a screen shares more than one sheet path, missing alternate references are added
* and alternate references of new sheet paths are cleared
*
* @param aInitialSheetPathList is the initial sheet paths list of hierarchy before changes.
*/
void ClearAnnotationOfNewSheetPaths( SCH_SHEET_LIST& aInitialSheetPathList );
/**
* Test all sheet and symbol objects in the schematic for duplicate time stamps
* and replaces them as necessary.
*
* Time stamps must be unique in order for complex hierarchies know which symbols go
* to which sheets.
*
* @return The number of duplicate time stamps replaced.
*/
int ReplaceDuplicateTimeStamps();
/**
* Delete all electronic rules check markers of \a aMarkerType from all the screens in
* the list.
*
* @param aMarkerType Type of markers to be deleted.
*/
void DeleteAllMarkers( enum MARKER_BASE::TYPEMARKER aMarkerType, bool aIncludeExclusions );
/**
* Delete all markers of a particular type and error code.
*/
void DeleteMarkers( enum MARKER_BASE::TYPEMARKER aMarkerTyp, int aErrorCode,
bool aIncludeExclusions = true );
/**
* Delete a specific marker.
*/
void DeleteMarker( SCH_MARKER* aMarker );
/**
* Initialize the #LIB_SYMBOL reference for each #SCH_SYMBOL found in the full schematic.
*
* @note This should only be called when the user specifically requests all library symbol
* links to be update or when the legacy schematic is opened for the last time. All
* subsequent schematic loads with the new s-expression will contain the library
* symbols.
*
* @param[in] aReporter An optional #REPORTER object pointer to write warning and error
* messages into.
*/
void UpdateSymbolLinks( REPORTER* aReporter = nullptr );
void ClearEditFlags();
/**
* Test all of the schematic symbols to see if all #LIB_ID objects library nickname is not
* set.
*
* If none of the #LIB_ID object library nicknames are not set, this indicates that the
* project was created before the symbol library implementation.
*
* @return true in there are any symbols and if all of the #LIB_ID object library nicknames
* are empty, otherwise false.
*/
bool HasNoFullyDefinedLibIds();
/**
* Fetch all of the symbol library nicknames into \a aLibNicknames.
*
* @param[out] aLibNicknames is the array to populate with all of the unique library nicknames.
* @return the number of symbol library nicknames found.
*/
size_t GetLibNicknames( wxArrayString& aLibNicknames );
/**
* Change all of the symbol library nicknames.
*
* @param[in] aFrom the current symbol library name to change.
* @param[in] aTo the new symbol library name.
* @return the number of symbol library nicknames that were changed.
*/
int ChangeSymbolLibNickname( const wxString& aFrom, const wxString& aTo );
/**
* Check if one of the schematics in the list of screens is \a aSchematicFileName.
*
* Schematic file names in SCH_SCREEN object are stored with the absolute path to
* the schematic file.
*
* @param[in] aSchematicFileName is the schematic file name to search.
* @return true if the a schematic matching the file name has been found.
*/
bool HasSchematic( const wxString& aSchematicFileName );
/**
* built the list of sheet paths sharing a screen for each screen in use
*/
void BuildClientSheetPathList();
/**
* Check \a aSchematicFileName for a potential file name case sensitivity issue.
*
* On platforms where file names are case sensitive, it is possible to schematic sheet
* file names that would cause issues on platforms where file name are case insensitive.
* File names foo.sch and Foo.sch are unique files on Linux and MacOS but on Windows
* this would result in a broken schematic.
*
* @param[in] aSchematicFileName is the absolute path and file name of the file to test.
* @return true if \a aSchematicFileName would cause an issue.
*/
bool CanCauseCaseSensitivityIssue( const wxString& aSchematicFileName ) const;
private:
void addScreenToList( SCH_SCREEN* aScreen, SCH_SHEET* aSheet );
void buildScreenList( SCH_SHEET* aSheet);
std::vector< SCH_SCREEN* > m_screens;
std::vector< SCH_SHEET* > m_sheets;
unsigned int m_index;
};
#endif /* SCREEN_H */
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